baber/WOPTO huggingface dataset:
Patent GB-882253-A (GB)
Title: Electrical memory apparatus
IPC: G06F7/38
Filed: 1959-02-13
Abstract: 882,253. Binary adders; data storage. INTERNATIONAL BUSINESS MACHINES CORPORATION. Feb. 13, 1959 [Feb. 14, 1958], No. 5027/59. Class 106 (1). A full binary adder operating at microwave frequencies and utilizing waveguide components incorporates a carry loop electrically stable in any of a plurality of oscillatory states the existing stable stage being changeable by a waveform impressed on the loop. As described, binary digits are represented by the phase of the electromagnetic waves, 1 and 0 waves differing by phase 180 degrees. Schematically the system is as shown in Fig. 1. A and B inputs representing binary digits are compared in a balanced detector 10 their relative phases determining the output on line 12 to a balanced modulator. The carry signal from the previous order is entered into the modulator on line 13, the relative phases of the signals on lines 12 and 13 determining the sum output. If the input phases are the same the output phase represents a binary zero. The carry signal is taken from a loop which includes a balanced modulator, the carrier being the second harmonic of the signal, an amplifier having a limiting or saturating characteristic and a majority circuit which compares the phases of the A and B inputs and the carry signal circulating in the loop and impresses on the circuit the phase of at least two out of the three compared signals to form the carry signal for the next order binary addition. One embodiment is shown in Fig. 2. Input waves A and B are applied to the H and E arms respectively of magic-T (hybrid junction) 235, the side arms of which contain crystal diode detectors 238, 239 connected in opposite polarity. The detector currents are fed to the side arms of magic-T 246 which receives the signal from the carry loop at its H arm, the output being the binary sum of inputs A and B taking into account carry from the previous order. Inputs A and B are also applied to magic-T 229 which if the inputs are in phase produces a signal which is applied to the carry loop through directional coupler 225. The phase of this applied signal determines the phase of the signal in the carry loop. The magic-T 218 together with diodes 214, 215 comprise a balanced modulator which produces at the H arm of the magic-T an output of the phase and frequency of the input at the E-arm. The diodes operate at frequency twice the control frequency. The carry loop also includes band-pass filter 221, amplifier 222, preferably of the travelling wavetype and magic-T 223 for take-off to the output sum generator 246. If necessary, a suitable delay is introduced into the carry loop. The circuit operates at a frequency of the order of 10 kilomegacycles. A more detailed circuit is described in Figs. 3A to 3D (not shown). It is stated that a similar circuit may be used at other frequency ranges by utilizing equivalent components.
Patent GB-1261886-A (GB)
Title: Method and apparatus for measuring
Inventor: FARRAR HERBERT ERNEST
IPC: G01B11/04
Filed: 1968-01-31
Abstract: 1,261,886. Measuring width photo-electrically. GEORGE KENT Ltd. Jan. 31, 1969 [Jan. 31, 1968], No. 5042/68. Heading G1A. In a method and apparatus for measuring the width of a regular elongated element, heat or light radiated by or reflected from first and second areas of the element is measured, the first area including the width of the element and an area outside of it, and the second being wholly within the boundary and the ratio of the two measurements is obtained to provide the width indication. Measurement may be by a pyrometer to which radiation from the two areas is applied alternatively or a pair of separate pyrometers, or one or two photo-sensitive devices. A pair of sensors may be connected to a self-balancing potentiometer the balancing position of which indicates the ratio. The invention is described as particularly useful in determining the rate of flow of a liquid metal stream from for example a tundish, the height of metal in the tundish being measured for example by a radiation type gauge and the square root of the height measurement signal being multiplied by the ratio width signal to indicate rate of flow.
Patent GB-854096-A (GB)
Title: Alloy members suitable for use as nuclear fuel elements and process for making the same
IPC: G21C3/28
Filed: 1959-02-13
Abstract: A uranium alloy with high corrosion resistance and low irradiation growth contains 1%-30% Zr, 3%-25% Nb, and not less than 60% uranium; impurities should be less than 0.15%.  Alloy ingots are prepared by double arc melting in a vacuum or an inert atmosphere and are hot worked by forging or extrusion at above 650 DEG C.  The worked alloy shapes are then rapidly cooled to keep the alloy in the gamma phase. The shapes may be clad, preferably in an alloy of Zr with 0.1%-2.5% Sn and 0.1%-2% from the group Fe, Ni, Cr; up to 2% Be may be added. The ingots are put in a tube or other container before the hot working.  The clad shapes are used as nuclear fuel elements.
Patent GB-844037-A (GB)
Title: Compositions for combating rodents
IPC: C07F9/59
Filed: 1959-02-13
Abstract: Compounds of the general formula <FORM:0844037/IV(b)/1> wherein X is oxygen or sulphur, aryl is a phenyl radical which may also be substituted with halogen or nitro groups, especially with chlorine groups, R1 is hydrogen, a lower alkyl or alkenyl radical or halogen-substituted lower alkyl radical or aryl group, R2 is hydrogen, lower alkyl, lower alkenyl or aryl, or halogen-substituted lower alkyl radicals and R2 may also be an alkylene radical linking the whole phosphoric or thio-phosphoric diaryl-ester-amide group to another same or different group of this type and R1 and R2, together with the nitrogen atom, may also form a saturated heterocyclic ring system, used as active ingredient in rodenticidal compositions (see Group VI) are prepared by amidation of phosphoric or thiophosphoric acid chlorides or by the conversion of amidophosphoric acid or amidothiophosphoric acid chlorides with the corresponding phenols or phenolates.  In an Example the compound of the formula <FORM:0844037/IV(b)/2> is prepared by reacting parachlorophenol dissolved in aqueous sodium hydroxide with dimethylamidophosphoric acid dichloride. In another example the compound of the formula <FORM:0844037/IV(b)/3> is prepared by reacting O,O-di-para-chlorophenyl phosphoric acid ester monochloride with ammonium hydroxide.  Many other compounds are given including ethylene-1,2,-diamido-N,N1-(bis - phosphoric or thio - phosphoric acids-4,41-dichloro-diphenyl ester).  Several other products are specified.ALSO:A rodenticidal composition comprises as active ingredient, preferably in the proportion by weight of 0,05 to 1% a compound of the general formula <FORM:0844037/VI/1> wherein X is oxygen or sulphur, aryl is a phenyl radical which may also be substituted with halogen or nitro groups, especially with chlorine groups, R1 is hydrogen, a lower alkyl or alkenyl radical or halogen-substituted lower alkyl radical or aryl group, R2 is hydrogen, lower alkyl, lower alkenyl or aryl, or halogen-substituted lower alkyl radicals and R2 may also be an alkylene radical linking the whole phosphoric or thiophosphoric diaryl-ester-amide group to another, same or different group of this type and R1 and R2, together with the nitrogen atom, may also form a saturated heterocyclic ring system, the active ingredient being in an aqueous emulsion containing a suitable emulsifier.  Many specified active ingredients are given.
Patent GB-487266-A (GB)
Title: Improvements in or relating to electric converters
IPC: H02M1/30
Filed: 1937-02-22
Abstract: 487,266. Mercury and other conducting - liquid switches. GENERAL ELECTRIC CO., Ltd., and DONALDSON, D. H. Feb. 22, 1937, No. 5225. [Class 38 (v)] In a converter in which electrolyte is forced centrifugally along ducts 8 in a pair of rotating arms 3 to engage successively pairs of fixed electrodes 2, the arms 3 are provided with extensions 13 and the orifices 12 are formed so as to direct the jets of electrolyte oppositely to the direction of motion so that the resultant velocity of the electrolyte is small.
Patent GB-675396-A (GB)
Title: Improvements in and relating to the production of enol acetates
Filed: 1950-03-02
Abstract: Enol acetates are produced by condensing ketene with a ketone or a ketonic carboxylic acid ester, the ketone or ester having a total of at least three replaceable hydrogen atoms attached to the carbon atoms directly connected with a carbonyl carbon atom, in the presence of a catalyst comprising a heterogeneous solid sulphonation and partial oxidation product of a solid carbonaceous material such as coal, wood pulp, charcoal, graphite, lignite, peat, cotton or synthetic resins.  The condensation is preferably effected at 40-100 DEG  C.  Numerous ketones and ketonic compounds falling within the following classes are specified:-saturated aliphatic ketones, olefinic ketones, saturated and unsaturated cyclic ketones, aromatic and mixed aromatic ketones, saturated and olefinic halogenated ketones and ketocarboxylic acid esters.ALSO:A catalyst for the production of enol acetates by condensing ketene with a ketone or a ketonic carboxylic acid ester, comprises a heterogeneous solid sulphonation and partial oxidation product of a solid carbonaceous material such as coal, wood pulp, charcoals, graphites, lignite, peat, cotton and synthetic resins. The catalyst, which contains sulphonic acid and carboxylic acid groups is made by treating the carbonaceous material with concentrated sulphuric acid, fuming sulphuric acid or sulphur trioxide, this treatment being followed, if desired, by treatment with nitric acid, and the solid product being finally separated, washed and dried.
Patent GB-454014-A (GB)
Title: Improvements relating to pouffes
IPC: A47C3/16
Filed: 1935-02-19
Abstract: 454,014. Seats convertible into pouffes, cots, or leg rests. PAYNE, H. A., 39, West Street, Bromley, Kent. Feb. 19, 1935, Nos. 5294 and 7257. [Class 52 (ii)] A pouffe is constructed with two U-shaped interfitting parts 12 usable separately, according to size, as stools or seats, a detachable back panel 14 being provided in the latter case. The two seats so formed may be placed end to end to form a cot, or one may be used as a leg rest.
Patent GB-470792-A (GB)
Title: A process for the manufacture of composite welded articles from pieces of artificial resins
IPC: B44C3/04
Filed: 1936-02-21
Abstract: The process described in the parent Specification is varied by heating the compositions only to a state, short of where they are capable of being cut, where they are capable of being crushed or ground but where they are infusible and will not flow freely when they are moulded under heat, the products so obtained being broken up and welded together by the action of pressure with or without moderate heat.  The broken particles may be arranged to yield final products resembling amber or tortoise shell.
Patent GB-1529102-A (GB)
Title: Manufacture of symmetrical carotenoids
IPC: C07F9/54
Filed: 1976-02-11
Abstract: 1529102 Carotenoids BASF AG 11 Feb 1976 [12 Feb 1975] 05346/76 Heading C2V A process for the manufacture of symetrical carotenoids comprises reacting a phosphonium salt of a carotenoid half-molecule in a solvent in the presence of a base with a peroxide, peroxo compound or a peroxy compound to effect dimerization of the phosphonium salt with formation of a double bond. In examples #- carotene is obtained from various phosphonium salt compounds by a reaction which may be represented as where R is phenyl and X is a bisulphate radical or a chloride radical, the starting materials being reacted with hydrogen peroxide, dibenzoyl peroxide, sodium perborate, peroxyacetic acid, m-chloroperoxybenzoic acid, sodium percarbonate, cumene hydroperoxide and tert-butyl hydroperoxide; the bases are ammonia, sodium carbonate, sodium hydroxide and sodium ethylate; in similar reactions there are obtained lycopene, 1,10-bis-[2<SP>1</SP>,6<SP>1</SP>,6<SP>1</SP>-trimethylcyclohex- 1<SP>1</SP>-en-1<SP>1</SP>-yl]-3,8-dimethyl-deca-1,3,5,7,8-pentane crocetin diethyl ester, crocetin dialdehyde, 4,4<SP>1</SP>-diapo-carotene-4,4<SP>1</SP>-diacid diethyl ester, methyl bixin, 12,12<SP>1</SP>-diapocarotene-12,12<SP>1</SP>-diacid diethyl ester, renierapurpurin, 1,2,1<SP>1</SP>,2<SP>1</SP>- tetrahydrolycopene and zeaxanthin dimethyl ether.
Patent GB-214041-A (GB)
Title: Improvements in and relating to self-measuring pumps
IPC: B67D7/60
Filed: 1923-02-23
Abstract: 214,041. Caulfeild, R. St. G. Feb. 23, 1923. Delivery pipes; emptying.-In petrol and like measuring pumps the hose is emptied by injecting compressed air into the upper portion thereof after the delivery has been interrupted. A compressed-air pump operated by a pinion 10 engaging the piston-rod rack 11 forces air into a chamber 13 connected to a two-way cock 15 interposed between the pump delivery and the delivery hose. When the petrol is turned off, air is injected into and empties the hose. The compressor may be single acting and operated by a one-way clutch, or it may be a double-acting one. In a modification, the compressor cylinder carries a spring-passed piston the rod of which is arranged concentric with and is forced up by the rack 11. The air is compressed in the bottom of the cylinder and passes to a cock such as 15.
Patent GB-1100483-A (GB)
Title: Polyesters having improved dyelightfastness
IPC: C08L67/00
Filed: 1965-02-08
Abstract: The dyelightfastness of polyesters is improved by incorporating into them manganous terephthalate in an amount of 0.01 to less than 0.1% by weight.  The manganous terephthalate may be incorporated at any stage but is preferably added to the initial reactants used in the manufacture of the polyester. Colour stabilizers, preferably polyphosphonate and phosphite -polyphosphate compounds may also be incorporated.  In examples an ester interchange reaction was effected between dimethyl terephthalate, ethylene glycol, methoxypolyethylene glycol (M.W. 2000) and pentaerythritol in the presence of zinc acetylacetonate and manganous terephthalate, titanium dioxide was then added and the reaction mixture was polycondensed to a fibre-forming polymer.
Patent GB-1375487-A (GB)
IPC: D02J1/22
Filed: 1972-02-07
Abstract: 1375487 Separating and drawing multifilament TEIJIN Ltd 7 Feb 1972 [3 Aug 1971] 5536/72 Headings D1D D1J and D1N A textile machine comprises a feed roller 6 and draw roller 8 which are independently driven and which unwind multifilament from a package 2 and pass it to a guide 10 which separates it into monofilaments. The monofilaments are wound on bobbins 24 which are supported and driven at one end, towards which they are pressed from the other end. The drive of the feed and draw rollers may be controlled during start up by a feed back stystem which compares a speed dependent voltage with a programmed voltage. The program is arranged so that the product of the draw produced by the rollers DR 2  and the draw produced due to the inertia of the package 2, DR 1  does not exceed a predetermined maximum DR 0 , Fig. 5. A circuit is described which gives an initial steady rate of increase of DR 2  in time o-t 1  after which the speed ratio and hence draw is constant while the speeds increase in time t 1 -t 0 . An additional circuit may be provided to also control the bobbin windup speed of motors 26 by amplifying a tension deviation signal produced by tension sensors 9 which are angularly displaced by a tension increase. The gain of the amplification in this circuit is increased with an increase of the voltage signals generated by the above mentioned program circuit. The means of pressing the bobbin ends, Fig. 3, comprises springs 35 which allow light gripping of the bobbins and electromagnetic or fluid operated cylinders 36 which increase the grip during winding. For Figures see next page
Patent GB-882226-A (GB)
Title: Improvements in or relating to frequency indicators
Inventor: PLANT GEORGE RHODES GOSLING
IPC: G01R23/00
Filed: 1957-02-19
Abstract: 882,226. Frequency measuring. SPEECH RESEARCH FOR THE DEAF Ltd. Feb. 11, 1958 [Feb. 19, 1957], No. 5569/57. Class 37. In apparatus for indicating the frequency of a waveform, e.g. the fundamental frequency of speech, a D.C. voltage is generated whose magnitude is dependent upon the waveform frequency, and which controls the position of a trace, relative to a datum position, upon a display device; whereby a visual indication of the waveform frequency is provided. The input waveform is applied to the grid of V1, either from an external source 48, or from microphone 49 by way of low-pass filter 50; and the amplified output from V2 is fed to cathode-coupled multivibrator stage V3, V4, whereby a square wave of constant amplitude and of frequency equal to the input waveform is produced and applied to a differentiating circuit comprising capacitor 13 and resistor 14. Positive and negative pulses having a width dependent upon the input waveform are thus provided at the anode of diode 15, and the positive pulses are fed to an integrating circuit comprising resistors 16-19 and capacitors 20-22, whereby a D.C. voltage dependent in magnitude upon the input waveform is fed by way of V5 and V6 to the deflector plates 27, 28 of a cathode-ray tube V8; the resulting trace being broadened into a line by time-base oscillator V7, the frequency of which is not critical. A beam suppression delay network, components 37-41, is provided to enable suppression of the trace until the time lag inherent in the integrating circuit 16-22 has elapsed.
Patent GB-537839-A (GB)
Title: Improvements in and relating to the control of synchronous electric motors
IPC: H02P1/46
Filed: 1940-03-28
Abstract: 537,839. Control of A.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd. March 28, 1940, No. 5611. Convention date, March 30, 1939. [Class 38 (iii)] The field switch 7 of a synchronous motor 1 is closed and opened under the control of a modulated current supplied by a pilot generator 10 driven by the motor. The pilot generator is a single phase machine with a mid-point stator tapping 13, and is excited from a rectifier 16. Operating winding 23 of relay 22 is energised with rectified current from half the stator of generator 10 whilst retaining winding 24 is energised with rectified current from transformer 18 modulated by the other half of the stator of generator 10. When motor 1 has accelerated to nearly synchronous speed, relay 22 lifts, and causes field switch 7 to close. Interlocks on switch 7 cause winding 23 to be energised with rectified current reversely modulated to that in winding 24, whereupon relay 22 drops and causes relay 33 to lift. If motor 1 falls out of synchronism relay 22 again lifts and opens a maintaining circuit of switch 7 which then opens. After a time delay 38 drops and restores circuits to initial state so that resynchronisation can occur.
Patent GB-308058-A (GB)
Title: Improved cleat or grip fastener for ropes and cords
IPC: B65D63/14
Filed: 1928-02-22
Abstract: 308,058. Edwards, S. F. Feb. 22, 1928. Chain and cord fastenings; grips, V-groove type.-A device for securing together the ends of a cord or chain comprises upper and lower Platesa, b interconnected at one end, coincident holes d, c to receive the knotted end f of the cord, and a V-notch g and a hole h in the plates a, b respectively so that a pull upon the parcelenclosing rope draws the plates together, the free end of the rope wedged in the V-notch interacting to resist the opening tendency of the outer end of the plates 1. The plates may be integral, as shown, or secured together, or hingedly connected.
Patent GB-307201-A (GB)
Title: Improvements in door checking devices
IPC: E05F3/10
Filed: 1928-02-23
Abstract: 307,201. Pratt, A. W., and Adams, J. S. Feb. 23, 1928. Operate doors by springs; checks.-In a door spring and check device comprising a piston check 9 and a closing spring 17 adapted to obviate any appreciable compression of the checking fluid until the door is nearly closed, an obturator 19 on the side of the piston opposite to the closing spring is adjustably a screw device 23, 24 fitted to the piston end 2 for moving the member 19 into an appropriate position. As the door closes under the action of the spring, the passage 20 through the check piston is engaged by the member 19 which prevents the passage of the check fluid through the passage 20 as the door reaches its nearly-closed position. This effect is made gradual by tapering the pin, as shown at 21. The cylinder 1 is mounted on the door and its piston 8 is connected by arms 13 to a pivot 14 rotatable in bracket arms 15 on the wall. In a modification, the member 19 is integral with the screwed member 24, which is adjustably mounted in the end 2 of the piston cylinder.
Patent GB-1529541-A (GB)
Title: Microwave antenna
IPC: H01Q1/38
Filed: 1977-02-11
Abstract: 1529541 Microwave array PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 11 Feb 1977 05707/77 Heading H4A A microwave array formed as a microstrip antenna comprises a sheet 1 of dielectric material, backed by a ground conductor, and bearing an array of elements 2 which are fed by feeder lines inclined with respect to the direction of polarization of the array. As shown, the array is fed from a common point 5 by means of a set of parallel feeder lines 8, a feeder line 9 parallel to lines 8 and intersecting the feed point 5, and a line 7 intersecting each of lines 8 and 9 and the feed point 5. Feeder lines 8, 9 are spaced apart by a half wavelength and the distance between adjacent elements along any of lines 7, 8 and 9 is one wavelength so that all elements are energized in phase. By changing the relative spacings of horizontal and vertical rows, different beamwidths in the horizontal and vertical planes may be obtained, Fig. 5b (not shown). The array need not be planar, and the elements need not be excited in phase. Variable phase shifters such as pin diodes may be located in the feeder lines.
Patent GB-433928-A (GB)
Title: Improvements in jointed support for hand microphone telephones (combining microphoneand earpiece together)
IPC: H04M1/04
Filed: 1935-02-22
Abstract: 433,928. Brackets. HUFSCHMID, A., 126, M÷hlebachstrasse, Zurich, Switzerland. Feb. 22, 1935, Nos. 5719 and 5720. Convention dates, Feb. 22, 1934 and Feb. 1, 1935. [Class 52 (v)] [See also Group XXXIX] An adjustable support for a telephone instrument 2 comprises a chain 10 of jointed links which can be folded over as shown in Fig. 1 to place the instrument on the switch hook 1 or swing outwards to form a rigid support for the instrument when in use. In one form, Fig. 1, the arm 10 is mounted on a sleeve 7 adjustable on a round rod 6. As applied to a desk telephone the arm 10 is mounted on an end-piece 21, Fig. 10, pivoted at 22 on a bracket 23 which turns about a screw 25 in the base 26. The piece 21 rests upon an adjustable set-screw 24. As shown in Fig. 13, the instrument 2 is mounted adjustably on the end link 32 of the arm by means of an elbow 42 which turns between stops about a pin 40 in a sleeve 34 which itself turns about the axis 33 and is provided with a spring stop 37, 39 to retain it in the normal position when in use.